LTO

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LTO

(Linear Tape Open) A family of open magnetic tape standards developed by HP, IBM and Quantum (formerly the Certance subsidiary of Seagate) that are licensed to third-party vendors. LTO cartridges contain a memory that stores historical usage data. Although LTO was introduced with a native capacity of only 100GB, multi-terabyte tapes followed. Starting with LTO-3, write once-read many (WORM) support was added, and LTO-4 built in hardware encryption (see table below). See WORM.

LTO Is Ultrium In 1998, two formats were announced: a single-hub Ultrium, like DLT cartridges, and a dual-hub Accelis, similar to Magstar MP. Sharing read/write head, track layout and other features, the single-hub Ultrium was accepted, while Accelis never took off. For information, visit www.lto-technology.com. See DLT and Magstar MP.

An LTO (Ultrium) Cartridge

The single-hub Ultrium is the only LTO format, and LTO and Ultrium are synonymous.

Quantum has the broadest product offerings in the segment with the value-oriented DLT VS products positioned against AIT and 4mm DAT in SMB environments, the SDLT products, which go head-to-head against LTO, and now LTO-2 and LTO-3 drives as a result of its acquisition of Certance.

4 TB of native capacity and data transfer speed of up to 187 GB per hour with one Ultrium LTO-2 drive and seven tape cartridges, and it will soon be available with Ultrium LTO-3, which will double the Magnum 1x7's capacity and speed.

The new features, which will be offered initially with libraries deploying the new LTO-3 generation tape drives, will allow users to make the Scalar 100 appear to software applications as up to three separate libraries.

The library is available in three configurations consisting of a single LTO-2 half-height SCSI drive, a single LTO-3 full-height SCSI drive, or a single LTO-3 full height Fibre Channel (FC) tape drive, along with four cartridge magazines that can hold a total of 48 LTO tape cartridges.

The Magnum 224 Fibre Channel LTO Tape Library with one LTO-3 FC drive and one 12-cartridge magazine is available now from Exabyte resellers for $7850, and additional 12-cartridge magazines are available for $350 (estimated U.

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